| Autor: |
Ogorodnikov, V. V., Koval'chenko, M. S., Krainii, A. G., Kutsenok, T. G., Karasev, V. S., Slavuta, V. I., Konozenko, I. D., Ryzhkov, Yu. T. |
| Zdroj: |
Materials Science; September 1968, Vol. 2 Issue: 5 p380-383, 4p |
| Abstrakt: |
1.A study of the effects of neutron bombardment on the structure and peoperties of Cr7C3 and TiC established that the cubic titanium carbide is more resistant to radiation than the hexagonal chromium carbide.2.Neutron bombardment of chromium carbide produces an increase in its lattice parameters a and c.3.The average grain size of neutron-bombarded carbides decreases and their electrical resistivity, microhardness and “microbrittleness” increase. All these properties recover after annealing at elevated temperatures.4.At relatively low annealing temperatures (about 400° C), the recovery of radiation damage takes place as a result of the activated glide of dislocations. At higher temperatures, an important part is played by diffusion processes which facilitate coalescence of point defects and formation of precipitates; the latter may, in the early stages of their formation, lead to an increase in the strength of the material. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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